ERW 219 Welding tube mill
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Nantong Reliantt offers almost 30 standard models, covering range from 3/8''(8mm) up to 10''(273mm) diameter (corresponding square & rectangular tubes) and wall thickness from 0.3mm up to 12.7mm, also accept customized machines.
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Suitable material: Carbon Steel Coil , Galvanized Steel Coil
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ERW 219 Welding tube mill
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1. Water pipe
2. Heating pipe
3. Low-pressure process pipeline
4. Low pressure fire fighting pipeline
5. Sewage Pipes
6. Steel Scaffolding Pipe
7. Wire and cable protection pipe
8. Structural support Steel Pipe
9. Industrial Steel Pipes
10. Decoration Pipe
11. Oil & Gas Pipes
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Commodity |
Tube mills |
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Round Pipe Size(mm) |
89-219mm |
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Pipe Thickness (mm) |
2mm-8 mm |
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Square Pipe Size(mm) |
70mm*70mm-170mm*170mm |
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Pipe Thickness (mm) |
2mm-6 mm |
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Material |
Carbon steel coil(GB Q195-Q345); Alloy steel coil; API 5L X42-X80 |
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Pipe Length(m) |
6 -12m |
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Length Tolerance(mm) |
±3mm |
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Line Direction |
right or left(from operator's side) |
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Production Speed(m/min) |
 10-50m/min |
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Low Carbon Steel And Low Alloy Steel: |
δb≤550Mpa ,δs≤235Mpa |
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Technical Flow |
 Scroll up→ Uncoil→ Flattening→ Cutting head, tail→ Strip Steel head-tail butt welding→ Looping storage→ Forming→ High-frequency induction welding→ Removing external burr→ Cooling→ Cutting→ Checking & Collecting→ Binding→ Accessing Warehouse. |
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Tube Bottom Pass line/ Line Power/ Electricity Input Power etc. |
 Belong to confidential information and detail parameters will be known in the quotation list. |
The central motor we are referring to here is a central Ebike Motor used on lithium-ion assisted Electric Bicycles, while the common one is the motor used on lithium-ion mountain assisted bicycles. It was developed and put into use after the hub motor, and compared to the hub motor, the technology of the central motor is not yet very mature, so there is still a long way to go in terms of performance stability. But the central motor has a characteristic that hub motors do not have, which is its instantaneous starting assistance function, so it also has a corresponding market. The most common method is to install a center mounted motor on a mountain Electric Bike to meet the bumpy road conditions in the mountains, so both hub motors and center mounted motors have their advantages and disadvantages. The choice of motor depends entirely on which aspect of its functionality you value.Generally speaking, the central motor is used to assist mountain bikes, and hub motors are more common on urban series of assist bicycles.
Electric Bicycle Motor ,Mid Motor,Ebike Motor
Ejoysport Technology (SuZhou)Co.,LTD , https://www.ejoysportbike.com